Ответ:

15.

1. rang

2. is repairing

3. was reading ... called

4. Are ... do you want

5. were singing ... were playing

6. works

16.

2. C bought

3. C was studying

4. A are working

5. C was walking

6. C lifted

7. C created

8. A used to go

9. A are looking

10. B helps

11. B leaves

12. B always play

Объяснение: